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CVML web series lecture understanding questionnaire
Lecture: Introduction to Signals and Systems
Lecturer: Prof. I. Pitas
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1.
What type of signal is Euro – dollar exchange rate?
*
1 point
a) Continuous time
b) Discrete time
c) Periodic
2.
What type of signal is the number of admissions to our department per year?
*
1 point
a) Continuous time
b) Deterministic
c) Discrete time
3.
What type of signal is the MP3 music signal we listen to?
*
1 point
a) Continuous time
b) Even
c) Discrete time
4.
Of how many dimensions has a grayscale image?
*
1 point
a) 1D
b) 2D
c) 3D
5.
What is electrocardiogram (EEG) signal type?
*
1 point
a) Periodic
b) Digital
c) Aperiodic
6.
What signal type of is cos(Ωt)?
*
1 point
a) Aperiodic
b) Periodic
c) Non-deterministic
7.
The period T of cos(2πn/N) is:
*
1 point
a) N/2
b) 2N
c) Ν
8.
The derivative of u(t) is:
*
1 point
a) u(t)
b) δ(t)
c) r(t)
9.
The value of impulse function δ(n) for n=0 is:
*
1 point
a) 1
b) ∞
c) 0
10.
The value of step function u(n) for n>=0 is:
*
1 point
a) 0
b) ∞
c) 1
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